How To Choose The Right Sample Vial

Hawach sample vials are available with three types: screw top, crimp the top and snap top sample vials. Reducing the possibility of sample evaporation, crimp caps provide the tightest seal. Compared to crimp tops, snap top sample vials can be applied and removed by hand more easily. And the unique thread design of screw-top sample vials ensures a permanent and firm seal.

You can find clear glass for maximum visibility or amber glass when you work with light-sensitive products for protection from UV rays. With full lines of different kinds of sample vials, Hawach provides the cleanest products on the market. and the cleanliness which is certified can reduce the appearance of impurity of measuring results.

How to correctly select and use sample vials and related products is particularly important for the efficiency of the experiment, the experimental process, and the accuracy of the experimental data. There are at least three aspects that need to consider, the sample vial septa, cap, and vial material.

1.About the choice of sample vial septa
PTFE / silicone
Recommended for multiple injections and sample storage;
With excellent resealing characteristics;
Chemical resistance of PTFE before piercing, the septum will have chemical compatibility of silicone after piercing;
The working temperature range is -60 ℃ -200 ℃.

Pre-cut PTFE / silicone
Provide good ventilation to prevent the formation of a vacuum inside the vial for excellent sampling reproducibility;
Eliminate clogging of the bottom needle after sampling;
Good reseal ability;
Recommended for multiple injections;
The working temperature range is -60 ℃ -200 ℃.

How To Choose The Right Sample Vial